Improvement in coal-oil lamps without chimneys



J. W. SCHREIBER.

Coal Oil Lamp without a Chimney.

No. 37,983. Patented March 24, 1863.

FIG- 2.

W 1 k z j 5: 3715 d W? H f, Hrr 3 i A r m UNITED STATES JOHN W.SCHREIBER,

PATENT OFFICE,

OF NEW'YORK, N. 'Y.

Specification forming part of Letters Patent No. 37,983, dated March 24,1863.

To all whom it may concern:

Be it known that I, JOHN WILLIAM ScHREr- BER, of the city, county andState of New York, have invented a new and Improved Burner for BurningCoal-Oil Without a Chimney and I do hereby declare that the following isa full, clear, and exact description of the same, reference being had tothe accompanying drawings, making a part ot'this speciiication, inwhich- Figure l is a side view of my invention applied to a lamp; Fig.2, an edge view of the same; Fig. 3, a detached plan or top view of thsame.

Similar letters of reference indicate corresronding parts in the severalfigures.

This invention consists in having the upper end of the wick-tube, whichis of the ordinary flat form, rounded at its upper end and havin g thewick-tube inclosed within a perforated jacket, the upper end of which isprovided with a slot or opening, contracted at its center and enlargedat its ends, as hereinafter fully shown and described, whereby a goodilluminating-flame is obtained without the aid ofa chimney.

To enable those skilled in the art to fully understand and constructIll) invention, I will proceed to describe it.

A represents the body or fountain of a lamp having asocket, B, onitsupper end,into which the burner U is screwed. This burner iscornposed of three parts, a b c. The lower part, a, is screwed into thesocket B and it is perfo rated with holes d, and is of flaring form, theupper part being provided with a vertical rim or flange, 6, within whichthe lower edge of the upper part, b, of the burner is fitted. The part cof the burner is the wick-tube, which is of the ordinary flat form, andis permanently secured in the part a. The upper end, f, of the wick-tubeis rounded or made of semicircular form, as shown by the dotted line inFig. l. The upper part, b, of the burner is of cylindrical form at itslower end, and of such diameter that it may fit snugly within the rim orflange e, as shown clearly in Fig. 1. This part b of the burner is alsoperforated with holes, 9, and it is gradually flattened from its lowerto its upper end, as shown in Fig. 2. In the upper end of b there is aslot or opening, it, which extends entirely across b and is considerablywider at its ends than at its center. (See Fig. 3.) The slot or openingit is a short distance above the top of the wick-tube, and the latter isdirectly underneath or in line with the narrow central portion of theslot or opening; It. By having the upper end of the wick-tube c ofrounded. or semicircular form a greater surface of wick is obtained thanif the wick-tube were straight or horizontal at its upper end. Thisshape of the upper end of the wick-tube in connection with thepeculiarshaped slot or opening it. in the upper end of the part b of theburner, causes the flame to be spread out so that a large surface of thelatter will be exposed to the air, while the top of the part b above thewick-tube 0 serves as a gas-chamber, to which air is admitted throughthe perforations 9, sufficient to cause an imperfect combustion only,the vapor being spread out just above the wick and burning with a goodilluminating-flame above the part b.

1 do not claim a wick tube with a semicirculartop or rounded atits upperend, for they have been previously used; neither do 1 claim, broadly, aperforated jacket, irrespective of the form of the slot or opening it,in its top; but,

Having thus described my invention, what I do claim as new, and desireto secure by Letters Patent, is

The combination of the roundedtop wicktube 0 and the perforated jacketI), when the latter is provided with a slot or opening, it, in its top,having its central part narrower than at its ends, as herein set forth.

